/**
 * Created by 57332 on 2017/8/15.
 */
//去除字符串空格
//去除空格  type 1-所有空格  2-前后空格  3-前空格 4-后空格
function trim(str, type) {
    switch (type) {
        case 1:
            return str.replace(/\s+/g, "");
        case 2:
            return str.replace(/(^\s*)|(\s*$)/g, "");
        case 3:
            return str.replace(/(^\s*)/g, "");
        case 4:
            return str.replace(/(\s*$)/g, "");
        default:
            return str;
    }
}
//字母大小写切换
/*type
 1:首字母大写
 2：首页母小写
 3：大小写转换
 4：全部大写
 5：全部小写
 * */
//changeCase('asdasd',1)
//Asdasd
function changeCase(str, type) {
    function ToggleCase(str) {
        var itemText = ""
        str.split("").forEach(
            function (item) {
                if (/^([a-z]+)/.test(item)) {
                    itemText += item.toUpperCase();
                }
                else if (/^([A-Z]+)/.test(item)) {
                    itemText += item.toLowerCase();
                }
                else {
                    itemText += item;
                }
            });
        return itemText;
    }

    switch (type) {
        case 1:
            return str.replace(/^(\w)(\w+)/, function (v, v1, v2) {
                return v1.toUpperCase() + v2.toLowerCase();
            });
        case 2:
            return str.replace(/^(\w)(\w+)/, function (v, v1, v2) {
                return v1.toLowerCase() + v2.toUpperCase();
            });
        case 3:
            return ToggleCase(str);
        case 4:
            return str.toUpperCase();
        case 5:
            return str.toLowerCase();
        default:
            return str;
    }
}
//字符串循环复制
//repeatStr(str->字符串, count->次数)
//repeatStr('123',3)
//"123123123"
function repeatStr(str, count) {
    var text = '';
    for (var i = 0; i < count; i++) {
        text += str;
    }
    return text;
}
//字符串替换
//字符串替换(字符串,要替换的字符,替换成什么)
function replaceAll(str, AFindText, ARepText) {
    raRegExp = new RegExp(AFindText, "g");
    return str.replace(raRegExp, ARepText);
}
//替换*
//replaceStr(字符串,字符格式, 替换方式,替换的字符（默认*）)
function replaceStr(str, regArr, type, ARepText) {
    var regtext = '', Reg = null, replaceText = ARepText || '*';
    //replaceStr('18819322663',[3,5,3],0)
    //188*****663
    //repeatStr是在上面定义过的（字符串循环复制），大家注意哦
    if (regArr.length === 3 && type === 0) {
        regtext = '(\\w{' + regArr[0] + '})\\w{' + regArr[1] + '}(\\w{' + regArr[2] + '})'
        Reg = new RegExp(regtext);
        var replaceCount = repeatStr(replaceText, regArr[1]);
        return str.replace(Reg, '$1' + replaceCount + '$2')
    }
    //replaceStr('asdasdasdaa',[3,5,3],1)
    //***asdas***
    else if (regArr.length === 3 && type === 1) {
        regtext = '\\w{' + regArr[0] + '}(\\w{' + regArr[1] + '})\\w{' + regArr[2] + '}'
        Reg = new RegExp(regtext);
        var replaceCount1 = repeatSte(replaceText, regArr[0]);
        var replaceCount2 = repeatSte(replaceText, regArr[2]);
        return str.replace(Reg, replaceCount1 + '$1' + replaceCount2)
    }
    //replaceStr('1asd88465asdwqe3',[5],0)
    //*****8465asdwqe3
    else if (regArr.length === 1 && type == 0) {
        regtext = '(^\\w{' + regArr[0] + '})'
        Reg = new RegExp(regtext);
        var replaceCount = repeatSte(replaceText, regArr[0]);
        return str.replace(Reg, replaceCount)
    }
    //replaceStr('1asd88465asdwqe3',[5],1,'+')
    //"1asd88465as+++++"
    else if (regArr.length === 1 && type == 1) {
        regtext = '(\\w{' + regArr[0] + '}$)'
        Reg = new RegExp(regtext);
        var replaceCount = repeatSte(replaceText, regArr[0]);
        return str.replace(Reg, replaceCount)
    }
}
//检测字符串
//checkType('165226226326','phone')
//false
//大家可以根据需要扩展
function checkType(str, type) {
    switch (type) {
        case 'email':
            return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);
        case 'phone':
            return /^1[3|4|5|7|8][0-9]{9}$/.test(str);
        case 'tel':
            return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);
        case 'number':
            return /^[0-9]$/.test(str);
        case 'english':
            return /^[a-zA-Z]+$/.test(str);
        case 'chinese':
            return /^[\u4E00-\u9FA5]+$/.test(str);
        case 'lower':
            return /^[a-z]+$/.test(str);
        case 'upper':
            return /^[A-Z]+$/.test(str);
        default :
            return true;
    }
}
//检测密码强度
//checkPwd('12asdASAD')
//3(强度等级为3)
function checkPwd(str) {
    var nowLv = 0;
    if (str.length < 6) {
        return nowLv
    }
    ;
    if (/[0-9]/.test(str)) {
        nowLv++
    }
    ;
    if (/[a-z]/.test(str)) {
        nowLv++
    }
    ;
    if (/[A-Z]/.test(str)) {
        nowLv++
    }
    ;
    if (/[\.|-|_]/.test(str)) {
        nowLv++
    }
    ;
    return nowLv;
}
//随机码（toString详解）
//count取值范围0-36
//randomNumber(10)
//"2584316588472575"
//randomNumber(14)
//"9b405070dd00122640c192caab84537"
//Math.random().toString(36).substring(2);
//"83vhdx10rmjkyb9"
function randomNumber(count) {
    return Math.random().toString(count).substring(2);
}
//查找字符串
/*
可能标题会有点误导
，
下面我就简单说明一个需求
，
在字符串
'sad44654blog5a1sd67as9dablog4s5d16zxc4sdweasjkblogwqepaskdkblogahseiuadbhjcibloguyeajzxkcabloguyiwezxc967'
中找出
'blog'
的出现次数
。
代码如下*/
function countStr(str, strSplit) {
    return str.split(strSplit).length - 1
}
var strTest = 'sad44654blog5a1sd67as9dablog4s5d16zxc4sdweasjkblogwqepaskdkblogahseiuadbhjcibloguyeajzxkcabloguyiwezxc967'
//countStr(strTest,'blog')
//6
